一個簡單的萬年曆製作

1.首先鍵盤輸入查詢的年份和月份

        Scanner sc = new Scanner(System.in);
		System.out.println("請輸入年份");
		int year = sc.nextInt();
		System.out.println("請輸入月份");
		int month = sc.nextInt();
		//判斷年月是否輸入正確
         while(year<1900)
		{
			 System.out.println("你輸入的年份不正確，請重新輸入年份");
		     year = sc.nextInt();
		}
		while(month>12||month<=0)
		{
			 System.out.println("你輸入的月份不正確，請重新輸入月份");
		     month = sc.nextInt();
		}
 

2.然後對該年份的屬性進行判斷（平年or閏年）：

//判斷該年是閏年還是平年
	public static boolean YearType(int year)
	{
		if ((year%4==0 &&year%100!=0)||year%400==0)
		{
			return true;
		}else{
			return false;
		}
	}

3.對輸入年份每個月的天數進行判斷

//判斷該年每個月的天數
    public static int day(int month,int year)
	{
		if(month==4||month==6||month==9||month==11){
			return 30;
		}else if(month==2){
			if(YearType(year)){
						return 29;	
					}else{
						return 28;
					}
		}else{
			return 31;
		}
	}
 

4.列印日曆表

public static void WeekTable(int month,int year,int dayall,int monthday){
		//
		System.out.println("日\t"+"一\t"+"二\t"+"三\t"+"四\t"+"五\t"+"六\t");
		for(int i=0;i<=day(month,year)+(dayall+monthday)%7;i++)
		{
			if(i<=(dayall+monthday)%7){
				System.out.print("\t");
			}else{
				System.out.print((i-(dayall+monthday)%7)+"\t");
			}
			if((i+1)%7==0&&i!=0){
				System.out.println();
			}
		}
	}
 

5.對以上進行整合，最後附上原始碼：

import java.util.Scanner;
class Calendar 
{
	public static void main(String[] args) 
	{	
		System.out.println("歡迎進入萬曆表查詢系統");
		System.out.println("---------------------------------------------------");
		boolean button=true;
		while(button!=false){
			Input();
			System.out.println("輸入'true'繼續查詢，'false'退出系統！");
			Scanner sc = new Scanner(System.in);
		    button=sc.nextBoolean();
			if(!button){
				System.out.println("謝謝你的使用，再見！");
			}
	}
	}
	public static void Input(){
		int dayall=0,monthday=0;
		Scanner sc = new Scanner(System.in);
		System.out.println("請輸入年份");
		int year = sc.nextInt();
         while(year<1900)
		{
			 System.out.println("你輸入的年份不正確，請重新輸入年份");
		     year = sc.nextInt();
		}
        System.out.println("請輸入月份");
		int month = sc.nextInt();
		while(month>12||month<=0)
		{
			 System.out.println("你輸入的月份不正確，請重新輸入月份");
		     month = sc.nextInt();
		}
		for (int i=1900+1;i<=year;i++)
		{
			if(YearType(i)){
				dayall+=366;
				//System.out.println("閏年");
			}else{
				dayall+=365;
				//System.out.println("平年");
			}
			
		}
		for (int i=1;i